What is the best way to have more than 255 computers and have to access each other????

There are many ways to do this, depending on the situation. First, the core router is divided into multiple subnets, which need to be supported by the core router. High cost.

Second, connecting with a VPN requires a VPN device, which is expensive and complicated. Third, use a switch with VLAN function to mark VLANHigh fees and complex setup.

Fourth, use the method of subnet mask to increase the number of hosts in the network. The cost is small and the setup is simple, but the number of hosts to be calculated Subnet Conversion Table Subnet Mask Number of Networks Number of Network Hosts 254 254 126 510 62 1022 You can also set up more host books, it is estimated that 1022 is enough for you!

If you have more than 255 computers, set the subnet mask to just go! After setting the subnet mask to, you can use the IP of the following segment! Hehe, you can't use enough IPs!

Just set the subnet mask to and you're good to go! The IP ranges that can be used are and remember to change the subnet mask to in the route.

If the number of hosts on the LAN exceeds 255, you can reduce the range of subnet masks to expand the hosts of the subnet.

If you want to expand the host bit, you can change the mask to so that the address range can be expanded to.

Subnet mask, also known as network mask, address mask, and subnet mask, is a bit mask used to indicate which bits of a core IP address identify the subnet where the host is located, and which bits identify the host. The subnet mask cannot exist on its own, it must be used in conjunction with an IP address. The subnet mask has only one function, which is to divide an IP address into two parts: the network address and the host address.

A subnet mask is a 32-bit address that masks a portion of an IP address to distinguish between network and host identities and to indicate whether the IP address is on a LAN or a remote network.

Set it to two CIDR blocks, for example, the first one.

The second is. Then use this ** to calculate the subnet mask.

Your machine is 300+ on the number of IPs in the [Please select the number of IPs of the subnet:

512 points are selected to calculate the subnet mask.

Then all your computer's IP addresses.

Native IP subnet mask.

The gateways will be able to communicate with each other.

If you have 300 computers, you will use class

C's IP must not work, it is recommended to use it.

The IP pool of ClassA is narrowed by the subnet mask address.

But you can't just design for only 300 computers to use, because there may also be printer equipment, server equipment, etc. that need to be connected to the network.

It is recommended that the subnet mask be.

Enough is enough.

If there are more than 254 machines in the same network, it is not possible to use the IP address of the same network segment, and it must be re-planned to use more than two switches or routers.

Plan and implement according to the following methodology:

1. Segmentation according to the specific function or geographical location of the computer.

1. Segment by geographic location. For example, there are two buildings, each with about 200 machines (if one has more than 254 machines, it needs to be divided into two sections). One building uses IP addresses between and the other uses IP addresses between them.

Each of the two segments uses a switch or router, and a network cable or optical fiber connects two switches or routers.

2. Segment according to the function of the computer.

For example, there are roughly two functional departments. One is internal service and the other is external service.

Then, try to connect all the computers of the internal service to one switch, and the external ones to one switch. The IP address is used in the same way as above.